I think the Lorna character is interesting and you've done a good job at building her character so far. They're both like, teenagers, right?
It will be interesting how you approach the next chapter where she goes home with Gerard. I mean, obviously she's currently living in an abusive household, but she probably can't just up and live with Gerard's family (realistically ... imho). Actually, talking about her dad more might be interesting too. Like, was he the one that sent her to the therapy place?
Anyway, I like this "set up" for the story - that Lorna isn't always happy (and we know Gerard isn't) so will that work FOR them, or AGAINST them in the new relationship? Hmm...
xD